. >> you have to try the science department. >>> this controversial headline, talking about a mom gene. there's some new research that says that could be something that actually gets that some women are better suited to give birth and be mothers. >> i have mom jeans. >> i'm wearing them now. cue the music. >>> get ready, everybody. trash to treasure in the house. it was a staple on "gaa." welcome to "gma" with this anchor showdown, like we've never done before. going to show you how to transform flea market bargains into stunning showpieces, we hope. yeah. we'll do our best, lara. >> that would be good of you. >> you might understand -- >> i'm lowering expectations, as the presidential nominees are both doing. >>> now, to the shocking murder mystery out of hollywood, that ended up with an up-and-coming tv actor dead. johnny lewis and officials say he went on a violent rampage, allegedly killing his landlady and then himself. was a designer drug behind all of it? abc's david wright has the latest from los angeles. david? >> reporter: that's the working theory of police officers investig